Add QMacPasteboardMime::count(QMimeData*).

As QTBUG-25076 points out, the ### comment indicates
that we want to add virtual function to
QMacPasteboardMime.

The default implementation returns 1. Reimplement 
for QMacPastebardMimeUrl and return the url count.

Change-Id: Ie300574eab9991af625986805d2b030914291cc0
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>

3 files changed, 17 insertions, 8 deletions

diff --git a/src/plugins/platforms/cocoa/qmacclipboard.mm b/src/plugins/platforms/cocoa/qmacclipboard.mm
index 73abd8945c..b769b2c7ed 100644
--- a/src/plugins/platforms/cocoa/qmacclipboard.mm
+++ b/src/plugins/platforms/cocoa/qmacclipboard.mm
@@ -305,14 +305,8 @@ QMacPasteboard::setMimeData(QMimeData *mime_src)
                 QString flavor(c->flavorFor(mimeType));
                 if (!flavor.isEmpty()) {
                     QVariant mimeData = static_cast<QMacMimeData*>(mime_src)->variantData(mimeType);
-#if 0
-                    //### Grrr, why didn't I put in a virtual int QMacPasteboardMime::count()? --Sam
-                    const int numItems = c->convertFromMime(mimeType, mimeData, flavor).size();
-#else
-                    int numItems = 1; //this is a hack but it is much faster than allowing conversion above
-                    if (c->convertorName() == QLatin1String("FileURL"))
-                        numItems = mime_src->urls().count();
-#endif
+
+                    int numItems = c->count(mime_src);
                     for (int item = 0; item < numItems; ++item) {
                         const int itemID = item+1; //id starts at 1
                         promises.append(QMacPasteboard::Promise(itemID, c, mimeType, mimeData, item));
diff --git a/src/plugins/platforms/cocoa/qmacmime.h b/src/plugins/platforms/cocoa/qmacmime.h
index 12c9aff039..53f474a95f 100644
--- a/src/plugins/platforms/cocoa/qmacmime.h
+++ b/src/plugins/platforms/cocoa/qmacmime.h
@@ -74,6 +74,7 @@ public:
     virtual QString flavorFor(const QString &mime) = 0;
     virtual QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav) = 0;
     virtual QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav) = 0;
+    virtual int count(QMimeData *mimeData);
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/qmacmime.mm b/src/plugins/platforms/cocoa/qmacmime.mm
index 8cb684fbea..2895d7dda8 100644
--- a/src/plugins/platforms/cocoa/qmacmime.mm
+++ b/src/plugins/platforms/cocoa/qmacmime.mm
@@ -168,6 +168,14 @@ QMacPasteboardMime::~QMacPasteboardMime()
         globalMimeList()->removeAll(this);
 }
 
+/*!
+  Returns the item count for the given \a mimeData
+*/
+int QMacPasteboardMime::count(QMimeData *mimeData)
+{
+    return 1;
+}
+
 class QMacPasteboardMimeAny : public QMacPasteboardMime {
 private:
 
@@ -586,6 +594,7 @@ public:
     bool canConvert(const QString &mime, QString flav);
     QVariant convertToMime(const QString &mime, QList<QByteArray> data, QString flav);
     QList<QByteArray> convertFromMime(const QString &mime, QVariant data, QString flav);
+    int count(QMimeData *mimeData);
 };
 
 QString QMacPasteboardMimeFileUri::convertorName()
@@ -648,6 +657,11 @@ QList<QByteArray> QMacPasteboardMimeFileUri::convertFromMime(const QString &mime
     return ret;
 }
 
+int QMacPasteboardMimeFileUri::count(QMimeData *mimeData)
+{
+    return mimeData->urls().count();
+}
+
 class QMacPasteboardMimeUrl : public QMacPasteboardMime {
 public:
     QMacPasteboardMimeUrl() : QMacPasteboardMime(MIME_ALL) { }